JPH03227175A - Facsimile equipment - Google Patents

Abstract

PURPOSE:To prevent occurrence of cut paper with large blank space left without recording by thinning an original picture at an equal interval based on a difference between a count of a main scanning line number of the transmission original by a page line counter and a line number of the cut recording paper by a recognition means. CONSTITUTION:A picture data by one page of a transmission original is read by a read section 3 and stored tentatively in a buffer memory 2. Simultaneously, a main scanning line number of a picture data by one page is counted by a page line counter 12 of a picture data thinning processing section 11 and the result of count and the line number of the cut recording paper at the receiver side by the recognition means stored in the memory are compared by a comparison arithmetic section 15. When the page line count is larger than the recognition line number and the difference is a prescribed number or below through the decision, a transmission reception control section 16 thins the line content of the memory 2 at an equal interval in response to the difference and the result is outputted to the line via a coding decoding section 17 and a MODEM 9 or the like. As a result, occurrence of cut paper with a large blank space left without recording is avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a facsimile device, and particularly to a facsimile device that is effective when a receiving side uses cut paper of a standard size as recording paper.

<Prior art> If the receiving side is a facsimile machine that uses cut sheets as recording paper, if the image data for one page of the received document exceeds the amount that can be recorded on one sheet of cut paper, the excess portion is The image data is recorded on the next cut sheet.

However, most cases where the image data of one page of the received original document cannot be recorded on one cut sheet are, for example, when the length of the original document on the sending side is a little longer than the specified size. In such a case, if the image data for one page of the received original is recorded separately on two cut sheets, the disadvantage is that the second cut sheet is almost blank and the cut sheets are wasted. there were. Also,
For example, if even a small amount of image is recorded on the second cut sheet, you cannot simply throw away the second cut sheet, so in the end, you have to check the received data that spans the two sheets. However, it also had the disadvantage of being cumbersome to handle.

Therefore, in order to eliminate such drawbacks, Japanese Patent Application Laid-open No. 1-
Publication No. 130662 states that when the received image data for one page of a manuscript has a number of lines that exceeds the number of main scanning lines that can be recorded on one cut sheet, and the number of lines that exceeded is below a certain value, A facsimile apparatus has been proposed in which received data beyond the range is not recorded.

In addition, Japanese Patent Application Laid-Open No. 1-137880 discloses that when the image data for one page of the received original has the number of lines exceeding the number of main scanning lines that can be recorded on one cut sheet, A facsimile apparatus has been proposed that does not record completely white data when the data is completely white.

<Problems to be Solved by the Invention> Among the facsimile machines described in each of the above-mentioned publications, in the former, even if there is a line that includes an image among the lines that cannot be recorded on a single sheet of cut paper, the number of lines cannot be recorded. Since it is not recorded when the value is less than a certain value, there is a drawback that it may cause trouble if relatively important data is included in the line that is not recorded.

On the other hand, the latter type of facsimile machine does not have such a drawback, but if all the data to be recorded on the second cut sheet is not recorded, that is, if it contains even a small amount of black data, the image data is recorded on two sheets of cut paper, and the disadvantage that handling of the recording paper is inconvenient remains unresolved.

This invention was made based on this background, and the image data for one page of the original to be transmitted exceeds the amount of data that can be recorded on a single sheet of paper used as recording paper on the receiving side. If the amount of data exceeded is relatively small, the image data is
To provide a facsimile device that processes image data for one page of an original to be sent in advance on a sending side and then sends it to a receiving side so that it is recorded well on a sheet of cut paper without worrying about data loss. aim at something.

Means for Solving the Problems> A first facsimile device according to the present invention is capable of reducing the number of lines that can be recorded on one cut sheet when the recording paper of the receiving facsimile device that receives image data is a cut sheet. a page line counting device that counts the number of main scanning lines of image data for one page of the original to be sent; a page line counting device that compares the count value of the page line counting device with the number of lines recognized by the recognition device; A determining means for determining whether the count value of the line counting means is greater than the number of recognized lines and the difference is less than or equal to a predetermined ratio with respect to the number of recognized lines; When the count value is greater than the number of recognized lines and the difference is less than a predetermined percentage of the number of recognized lines, the document 1 to be sent is
A line deletion means thins out the main scanning lines of image data for a page by the calculated difference number at equal intervals, and the image data thinned out by the line deletion means is sent to the receiving side as data for one page of the original. A facsimile device characterized in that it includes means for transmitting.

A second facsimile device according to the present invention includes a recognition unit that recognizes the number of lines that can be recorded on one cut paper when the recording paper of the receiving facsimile machine that receives image data is a cut paper, A page line counting means counts the number of main scanning lines of image data for one page of the original to be transmitted, and detects a white line in which all pixels are white among the main scanning lines of image data for one page of the original to be transmitted. Compare the count value of the white line detection counting means and the page line counting means with the number of lines recognized by the recognition means, and when the count value of the page line counting means is greater than the number of recognized lines, the difference is detected. a calculating means for calculating the number of differences, a determining means for determining whether the calculated number of differences is less than a predetermined ratio with respect to the count value of the white line detection counting means, and a determining means for determining whether the calculated number of differences is a count value of the white line detection counting means. A line deletion means that thins out the detected white line by the calculated difference number when the value is less than a predetermined percentage, and the image data after being thinned out by the line deletion means as data for one page of the manuscript. A facsimile device characterized in that it includes means for transmitting data to a receiving side.

A third facsimile device according to the present invention provides a recognition means for recognizing the number of lines that can be recorded on one sheet of cut paper when the recording paper of the receiving facsimile device that receives image data is a cut paper, A page line counting means that counts the number of main scanning lines of image data for one page of the original, detects and counts a white line in which all pixels are white among the main scanning lines of image data for one page of the original to be transmitted. The count values of the white line detection counting means and the page line counting means are compared with the number of lines recognized by the recognition means, and if the count value of the page line counting means is greater than the number of recognized lines and the difference between them is A determining means for determining whether the number of recognized lines is less than or equal to a predetermined ratio, and a count value of the page line counting means is greater than the number of recognized lines, and the difference is the number of recognized lines. white line deletion means for thinning out the white lines detected by the white line detection counting means according to predetermined conditions when the number of white lines to be thinned out is equal to or less than a predetermined ratio; a second line deletion means that thins out the remaining number of lines from the main scanning lines of the image data when the number of remaining lines is less than 1, and transmits the image data thinned out by the line deletion means to the receiving side as data for one page of the original. This is a facsimile machine characterized by including means for.

Further, in the third facsimile apparatus, the second line deletion means thins out the number of remaining lines from the main scanning lines of the image data at equal intervals.

Effect> In the first facsimile apparatus of the present invention, when the recording paper of the receiving facsimile apparatus that receives image data is a cut paper, the number of lines that can be recorded on one cut paper is recognized.

This recognition is possible because the recording paper on the receiving side is a cut sheet and the size of the cut sheet can be identified based on the terminal function information sent from the receiving side to the sending side prior to image data transmission. A line number is recognized based on the identification.

More specifically, for example, the number of main scanning lines for each size is stored in advance in the storage means, and when the receiving side cut paper size is identified based on the terminal function information, the number of lines of the identified size is stored in advance. The number of lines is recognized by reading out from the storage means.

Alternatively, if the terminal function information itself includes the number of lines that can be recorded on a cut sheet, the number of lines can be directly recognized based on the terminal function information.

In addition, the number of main scanning lines of image data for one page of the original to be transmitted is counted by a page line counting means,
The count value is compared to the number of recognized lines. Then, it is determined whether the count value is greater than the number of recognized lines and the difference is less than or equal to a predetermined ratio with respect to the number of recognized lines.

When the count value of the page line counting means is greater than the number of recognized lines, and the difference is less than a predetermined ratio to the number of recognized lines, one page of image data to be transmitted is The main scanning lines are evenly spaced,
It is thinned out by the calculated difference number. Therefore, the number of main scanning lines of the thinned image data is the number of main scanning lines that can be recorded on one sheet of cut paper used on the receiving side.

The thinned image data is transmitted to the receiving side as data for one page of the original.

In the second facsimile device according to the present invention, the number of lines that can be recorded on one cut sheet on the receiving side is recognized in the same way as the first facsimile device, and the main scanning line of image data for one page of the original to be transmitted is recognized. At the same time, among the main scanning lines of the image data for one page of the original to be transmitted, a white line in which all pixels are white is detected and counted by the white line detection and counting means.

Further, the count value of the page line count means is compared with the number of recognized lines, and when the count value of the page line count means is greater than the number of recognized lines, the difference number is calculated.

Then, it is determined whether the calculated difference number is less than or equal to a predetermined ratio with respect to the count value of the white line detection counting means.

When the number of differences is less than a predetermined ratio with respect to the count value of the white line detection and counting means, the white lines detected by the white line detection and counting means are thinned out by the calculated number of differences.

The thinned-out image data is then transmitted to the receiving side as data for one page of the document.

In the third facsimile device according to the present invention, the number of lines that can be recorded on one cut sheet on the receiving side is recognized in the same way as the first facsimile device, and the main scanning line of image data for one page of the original to be transmitted is recognized. At the same time, among the main scanning lines of the image data for one page of the original to be transmitted, a white line in which all pixels are white is detected and counted by the white line detection and counting means.

The count value of the page line counting means is compared with the number of recognized lines, and the count value of the page line counting means is greater than the number of recognized lines, and
It is determined whether the number of differences is less than a predetermined percentage of the number of recognized lines.

When the count value of the page line counting means is greater than the number of recognized lines and the difference is less than a predetermined ratio to the number of recognized lines, the white line detection means detects the white line by the first line deletion means. The white lines thus created are thinned out according to predetermined conditions.

Furthermore, when the number of white lines thinned out by the first line deletion means is less than the calculated difference number, the remaining number of lines are thinned out from the main scanning lines of the image data by the second line deletion means.

This thinning is preferably done at equal intervals.

Then, the image data after being thinned out by the line deletion means is transmitted to the receiving side as data for one page of the original.

<Example> Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

1 to 3 show a first embodiment of the invention.

FIG. 2 is a block diagram showing the overall configuration of the facsimile machine.

The facsimile machine is equipped with a control section 1, and the control section 1 includes an image data thinning processing section 11. The control section 1 includes a buffer memory 2, a reading section 3, and a recording section 4.
, a mechanism section 5, a sensor section 6, an operation section 7, a memory 8, a modem 9, and an NCU (network control circuit) 10 are connected.

The reading section 3 is for optically reading image data recorded on a document. The sensor unit 6 determines whether a document is set in the reading unit 3 or not.

The buffer memory 2 is for storing image data etc. read by the reading section 3 in units of pages.

The recording unit 4 includes a paper storage unit that can store recording paper such as cut paper or roll paper of a standard size, for example, A4 size, and stores image data received by this facsimile machine, communication record management data, etc. on the recording paper. It is for recording.

The mechanism section 5 is a mechanical component of the facsimile machine, and is composed of a motor, a cam, a roller, a switch, and the like. The mechanism section 5 transports documents and recording paper, and drives the heads of the reading section 3 and the recording section 4.

The sensor section 6 is used to determine the presence or absence of a document in the reading section 3 and the presence or absence of recording paper in the recording section 4, as described above.

The operating section 7 is arranged on the outer surface of the facsimile machine, and the operating section 7 is equipped with various types of keys that can be operated by an operator.

The memory 8 stores the control program executed by the control unit 1 and the number of main scanning lines that can be recorded on one cut sheet of each size. In addition, the memory 8 is used when additional functions such as one-touch dialing and speed dialing are set.
It also has a function for storing the set function data.

The modem 9 is used to modulate image data sent from the facsimile device and demodulate image data received by the facsimile device.

NCUIO is for connecting an external communication line and a facsimile machine, and signals are transmitted to the external communication line via NcUlo, and signals from the external communication line are received.

FIG. 1 is a block diagram showing the main structure of this embodiment, showing the detailed structure of the image data thinning processing section 11 and the flow of image data to be transmitted.

The image data thinning processing section 11 includes a page line counter 12, a comparison/calculation section 15, a transmission/reception control section 16, and an encoding/decoding section 17.

The image data for transmission read by the reading section 3 is given to the page line counter 12 and the buffer memory 2 in units of one page of the document. The page line counter 12 counts the number of main scanning lines of image data for one page of the original to be transmitted. The comparison/calculation section 15 performs predetermined processing based on the output of the page line counter 12 and the number of recording paper lines stored in the memory 8,
gives control signals to.

Further, the image data that has been given to the buffer memory 2 and stored once is given to the encoding/decoding section 17 via the transmission/reception control section 16, encoded, and sent to the modem 9 and the NCU.
Sent to the receiver via IO.

In this embodiment, the image data thinning processing section 11 is explained as being divided into configurations such as a comparison/calculation section 15, a transmission/reception control section 16, an encoding/decoding section 17, etc.; however, the control section 1
When the entire system is configured with a microcomputer, there are no specific circuits such as the comparison/calculation unit 15 and the transmission/reception control unit 16, and the processing in these parts is accomplished by software.

FIG. 3 is a flowchart showing the image data transmission process of the facsimile machine according to this embodiment. Next, following the flow of Figure 3 and mainly referring to Figure 1,
The image data transmission processing procedure of this device will be explained.

First, when a line is connected to the destination of the image data, information representing terminal functions and the like is exchanged with the receiving side (step Sl). Information representing terminal functions (for example, DIS signal) sent from the receiving side is recorded by the receiving side as a recording paper.
Are you using cut paper or roll paper?
Includes paper size, etc.

Next, it is determined whether transmission is in high resolution mode or not (step S2). If the transmission is not in the high resolution mode, one page of image data of the document is read by the reading unit 3 (step S3). The read data is sent to the transmission/reception control unit 16 and encoded/decoded by the encoding/decoding unit 17.
The image data is encoded (step S4). The encoded image data is modulated by the modem 9 and then sent to the NCUI.
It is sent to the receiving side via O (step S5).

Then, it is determined whether the transmitted image data is the final page of the document to be transmitted (step S6), and if it is not the final page, the processing from step S3 is repeated.

If it is the last page, the line is disconnected (step S7).
, this process is terminated.

In step S2, if the transmission is in high resolution mode, then it is determined whether the receiving side is using cut paper as recording paper (step S8). If the receiving side is not using cut paper as recording paper, that is, if it is using roll paper, the steps 83 to S6 described above are performed in the same way as when transmission is not in high resolution mode.
The process is repeated.

In step S8 above, if the receiving side uses cut paper as recording paper, the reading unit 3 reads one page of image data of the document (step S9);
The image data for one page of the read document is sent to the page line counter 12 and sent to the transmission/reception control unit 16.
is sent to the buffer memory 2 via.

Then, the page line counter 12 counts the number A of main scanning lines of image data for one page of the original (step 510). In addition, the image data for one page of the manuscript is
It is stored in buffer memory 2 (step 511).

Next, in the comparison/calculation section 15, the number A of main scanning lines of the image data for one page of the document counted by the page line counter 12 is determined by It is determined whether the number of scanning lines is greater than the number C (Arc) (step 512).

The number C of main scanning lines that can be recorded on one sheet of cut paper is determined based on the information indicating the terminal function sent from the receiving side when the line with the image data destination is connected in step S1 above. , the corresponding number C of main scanning lines is read out from the memory 8 and provided to the comparison/calculation section 15, thereby obtaining the number C.

When the number A of main scanning lines of image data for one page of the original counted by the page line counter 12 is equal to or less than the number C of main scanning lines that can be recorded on one sheet of cut paper used as recording paper on the receiving side. (Arc) has
Image data for one page of the original (image data for all lines A) is read out from the buffer memory 2 (step 8
13).

The read image data is then encoded by the encoding/decoding unit 17 (step 514), and the encoded image data is modulated by the modem 9 and then sent to the NCU.
It is sent to the receiving side via IO (step 515).

Then, it is determined whether the transmitted image data is the final page of the original to be transmitted (step 516), and if it is not the final page, the process returns to step S9 and the image data of the next page of the original is read. . If it is the last page, the line is disconnected (step S7) and this process is ended.

In step S12 above, page line counter 1
If the number A of main scanning lines of the image data for one page of the original counted in step 2 is greater than the number C of main scanning lines that can be recorded on one sheet of cut paper used as recording paper on the receiving side (
Arc), that is, if there is a line that exceeds the recording line of one sheet of cut paper, the process moves to step 517, and the force and
It is determined whether the ratio of the number of lines to the number C of main scanning lines that can be recorded on one sheet of paper is less than or equal to a predetermined ratio.

That is, first, the overline number D-A-C is calculated, and then the overline number is calculated such that, for example, "D≦0.05X
It is determined whether it is CJ or not.

If the above formula is not satisfied, the image data for one page of the original stored in the buffer memory 2 is transmitted so as to be recorded on two cut sheets on the receiving side. In other words, out of the number A of main scanning lines of image data,
Image data corresponding to the number C of main scanning lines that can be recorded on one cut sheet is read out (step 518), encoded and
Encoded by the decoding unit 17 (step 519
). The encoded image data is then modulated by the modem 9 and then sent to the receiving side via the NCUIO (step 520).

Next, image data corresponding to the remaining main scanning line number A of the image data for one page of the original stored in the buffer memory 2 is read out (step 521) and encoded. - Encoded by the decoding unit 17 (step 522). The encoded image data is then modulated by the modem 9 and then sent to the receiving side via the NCC 10 (step 823).

After this, it is determined whether the transmitted image data is the last page of the original to be transmitted (step 516), and if it is not the last page, the process returns to step S9 and the image data of the next page of the original is read. It will be done. If it is the last page, the line is disconnected (step S7) and this process ends.

If it is determined in step S17 that "D≦0.05XCJ," image data for one page of the original stored in the buffer memory 2 is read out (step S
4). The image data for one page of the read document is recorded on one cut sheet on the receiving side, so that the main scanning line is thinned out by one line for each C/D line in the transmission/reception control unit 16. (step 525). and,
The image data for one page of the thinned out manuscript is sent to the encoding/decoding section 17 and encoded (step 526).
. The encoded image data is modulated by the modem 9 and then sent to the receiving side via the NCCl0 (step 52).
7).

Therefore, in this case, the number of lines of image data sent to the receiving side is the number of lines that can be recorded on one sheet of paper.
This is recorded on a single cut sheet on the receiving side.

Furthermore, since the thinning is performed under predetermined conditions, there is no problem such as characters being unreadable when recorded on cut paper.

After this, it is determined whether the transmitted image data is the last page of the original to be transmitted (step 516), and if it is not the last page, the process returns to step S9 and the image data of the next page of the original is read. It will be done. If it is the last page, the line is disconnected (step S7) and this process ends.

In the above transmission process, the determination in step S2 may be omitted.

Further, the cut paper may be so-called plain paper, or may be thermal paper or photosensitive paper.

4 to 6 show a second embodiment of the invention.

FIG. 4 is a block diagram showing the main configuration of this embodiment, showing the detailed configuration of the image data thinning processing section 11 and the flow of image data to be transmitted.

This image data thinning processing section 11 is a
It is almost the same as the image data thinning processing section 11 of the embodiment, but includes a white line detection circuit 13 and a white line counter 14.
It differs from the one shown in Fig. 1 in that it is provided with .

The image data to be transmitted read by the reading section 3 is provided to a page line counter 12, a white line detection circuit 13, and a buffer memory 2 in units of one page of the document. The page line counter 12 reads the original 1 that has been read.
The number of main scanning lines of image data for a page is counted.

The white line detection circuit 13 detects a white line in which all pixels are white among the main scanning lines of image data for one page of the read document. In addition, at this time, it is preferable to be able to detect the appearance of the white line, that is, the white line pattern, which is how many consecutive white lines and how many consecutive lines other than white lines.

A white line counter 14 counts the number of white lines detected by the white line detection circuit 13. The comparison/calculation section 15 performs predetermined processing based on the output of the page line counter 12, the output of the white line counter 14, and the number of lines that can be recorded on the cut sheet, and provides a control signal to the transmission/reception control section 16.

White line detection circuit 1 of this image data thinning processing section 11
3 and white line counter 14 can also be achieved by software.

FIG. 5 is a flowchart showing the image data transmission process of the facsimile machine according to this embodiment. Next, following the flow of Figure 5 and mainly referring to Figure 4,
The image data transmission processing procedure of this device will be explained.

First, when a line is connected to the destination of the image data, information representing terminal functions and the like is exchanged with the receiving side (step 531). The information sent from the receiving side indicating the terminal function (for example, DNS signal) includes information such as whether the receiving side is using cut paper or roll paper as recording paper, and the size of the paper. .

Next, based on the above-mentioned information sent, it is determined whether or not the receiving side uses cut paper (step 53).
2). If the receiving side is not using cut sheets, the reading unit 3 reads one page of image data from the original (step 833).

The read data is sent to the transmission/reception control unit 16, and the image data is encoded in the encoding/decoding unit 17 (step 534). The encoded image data is modulated by the modem 9 and then sent to the receiving side via the NCUIO (step 535).

Then, it is determined whether the transmitted image data is the final page of the document to be transmitted (step 536), and if it is not the final page, the processing from step S3B is repeated. If it is the last page, the line is disconnected (step 537) and this process is ended.

In step S32, if the receiving side uses cut paper as recording paper, the reading unit 3 reads one page of image data from the original (step 838).
), the read image data for one page of the original is sent to the page line counter 12 and the white line detection circuit 13 as well as to the buffer memory 2 via the transmission/reception control section 16 .

Then, the page line counter 12 counts the number A of main scanning lines of image data for one page of the original (step 539). Furthermore, in the white line detection circuit 13,
It is determined whether each main scanning line of image data for one page of the original is a white line or not, and when a white line is detected, the number B of white lines is counted by the white line counter 14 (step 540). . Further, image data for one page of the original is stored in the buffer memory 2 (step 541).

Next, in the comparison/calculation section 15, the number A of main scanning lines of the image data for one page of the document counted by the page line counter 12 is determined by It is determined whether the number of scanning lines is greater than C (A>C) (step 542).

The number C of main scanning lines that can be recorded on one sheet of cut paper is determined based on the information indicating the terminal function sent from the receiving side when the line with the destination of the image data is connected in step S31 above. , the corresponding number C of main scanning lines is read out from the memory 8, and is provided to the comparison/calculation section 15, thereby obtaining the main scanning line number C.

When the number A of main scanning lines of the image data for one page of the document counted by the page line counter 12 is equal to or less than the number C of main scanning lines that can be recorded on one cut sheet on the receiving side (A≦C) In step 843, image data for one page of the original (image data for all lines A) is read out from the buffer memory 2. The read image data is then encoded in the encoding/decoding unit 17 (step 843), and the encoded image data is modulated by the modem 9 and then sent to the receiving side via the NCUIO. (step 545).

Then, it is determined whether the transmitted image data is the final page of the original to be transmitted (step 546), and if it is not the final page, the process returns to step S38 and the image data of the next page of the original is read. . If it is the last page, the line is disconnected (step 537) and this process ends.

In step S42, the page line counter 1
If the number A of main scanning lines of the image data for one page of the original counted in step 2 is greater than the number C of main scanning lines that can be recorded on one cut paper on the receiving side (A>C), that is, one cut paper If there is a line that exceeds the recording line, the process moves to step S47, and it is determined whether the ratio of the number of overlines to the number of main scanning lines C that can be recorded on one cut sheet is less than a predetermined ratio. is done.

That is, first, the overline number D-A-C is calculated, and then the overline number is calculated such that, for example, "D≦0.05X
It is determined whether it is CJ or not.

If the above formula is not satisfied, the image data for one page of the original stored in the buffer memory 2 is transmitted so as to be recorded on two cut sheets on the receiving side. That is, out of the number A of main scanning lines of image data, image data corresponding to the number C of main scanning lines that can be recorded on one cut sheet is first read out (step 548), and the read image data is encoded and It is encoded by the decoding unit 17 (step 549). The encoded image data is then modulated by the modem 9 and then sent to the receiving side via the NCUlo (step 550).

Next, out of the main scanning line number A of image data for one page of the original stored in the buffer memory 2, image data corresponding to the remaining number of main scanning lines is read out (
Step 551), the read image data is encoded and
Encoded by the decoding unit 17 (step 552)
. The encoded image data is then modulated by the modem 9 and then sent to the receiving side via the NCUIO (step 553).

After that, it is determined whether the transmitted image data is the last page of the original to be transmitted (step 546), and if it is not the last page, the process returns to step 838, and the image data of the next page of the original is read. It will be done. If it is the last page (step 537), the line is disconnected and this process ends.

If it is determined in step S47 that rD≦0.05XCJ, image data for one page of the original stored in the buffer memory 2 is read out (step 55
4). Then, the white line thinning process of step S55 is executed so that the information is recorded on one cut sheet on the receiving side.

Details of this white line thinning process are shown in FIG. First, it is determined whether the ratio of the number of overlines to the number of white lines B is less than or equal to a predetermined value.

That is, the overline number is, for example, "D≦0.2X
It is determined whether it is BJ or not (step S10.1). If the above formula is not satisfied, step S
The process moves to step S48, and the same process as in the case where the determination is No in step S47 is executed, and the thinning process is not performed.

In step 5101 above, if it is determined that D≦0.2XBJ, the number of overlines can be thinned out from the white line group (for example, indicated by It is determined whether or not (step 5102
). Then, if the number of overlines can be thinned out from the white line group X is subtracted for D lines and sent to the encoding/decoding unit 17 (step 5103
).

If the number of overlines cannot be thinned out from the leading white line group X, the white line group (
For example, it is determined whether or not the number of overlines can be thinned out (as shown by 2 in FIG. 7) (step S104).

Then, the white line group Z in the part corresponding to the rear edge of the document
If the number of overlines can be thinned out, the transmission/reception control section 16 sends the number C of main scanning lines from the beginning of the image data for one page of the read document to the encoding/decoding section 17. (Step S105).

If the number of overlines cannot be thinned out from either the leading white line group X or the trailing white line group Z, the image data for one page of the read document is For example, 1 line per 5 lines
The data is thinned out line by line and sent to the encoding/decoding unit 17 (step 5106).

In step 5103, 5105 or 5106,
The image data sent to the encoding/decoding section 17 is encoded by the encoding/decoding section 17 in step S56 in FIG. Then, the encoded image data is
After being modulated by modem 9, it is sent to the receiving side via NCUIO (step 557).

Therefore, in this case, the number of lines of image data sent to the receiving side is the number of lines that can be recorded on one sheet of paper.
This is recorded on a single cut sheet on the receiving side.

Furthermore, since the white line in which all pixels are white is thinned out, there is no problem such as characters being unreadable when recorded on cut paper.

After that, it is determined whether the transmitted image data is the last page of the original to be transmitted (step 546), and if it is not the last page, the process returns to step 538, and the image data of the next page of the original is read. It will be done. If it is the last page, the line is disconnected (step 537) and this process is ended.

FIG. 8 shows a white line thinning processing procedure according to a third embodiment of the present invention. The process shown in FIG. 8 is a process performed in place of step S55 of the flowchart of FIG. 5, that is, steps 8101 to 5106 of the flowchart of FIG.

In this white line thinning process, first, it is determined whether the ratio of the number of overlines to the number of white lines B is less than or equal to a predetermined value.

That is, the overline number is, for example, rD<0°5×
B" is determined (step S201). If the above formula is satisfied, the image data for one page of the read document is processed by the transmission/reception control unit 16 so that the white lines are separated by a certain ratio, for example, by one line for each B/D line. The data is subtracted and sent to the encoding/decoding section 17 (step 5202).

If it is determined in step 5201 that rD<0.5XBJ is not satisfied, then it is determined whether or not the transmission is in high resolution mode (step 3203). When transmitting in high-resolution mode, there is no problem even if the image data is thinned out to some extent, so the overline portion is thinned out at a certain percentage starting from the white line, and the remaining overline portion is thinned out from the white line. The data is thinned out at a constant rate and sent to the encoding/decoding unit 17 (step 5204).

For example, the white line is thinned out line by line, and the lines other than the white line are ((A-B)/(D-0°5B)).
Each line is thinned out by one line.

On the other hand, if the transmission is not in high resolution mode, there are too many thinning lines, so the thinning process is not performed and the process advances to step 848 in FIG.

The image data thinned out and sent to the encoding/decoding section 17 in step 5202 or 8204 proceeds to step S56 in FIG. 5, where it is encoded by the encoding/decoding section 17.

Therefore, in this case, the number of lines of image data sent to the receiving side is the number of lines that can be recorded on one sheet of paper.
This is recorded on a single cut sheet on the receiving side.

In addition, if the entire minus line is thinned out from the white line, or in high-resolution mode transmission, the overline portion is preferentially thinned out at a certain percentage from the white line,
Since the remaining overline is thinned out at a constant rate from lines other than the white line, there will be no problem such as characters being unreadable when recorded on cut paper.

<Effects of the Invention> With the first facsimile device according to the present invention, the image data for one page of the original to be transmitted is larger than the amount of data that can be recorded on one sheet of cut paper used as recording paper on the receiving side. In cases where there is a slight amount of image data, the image data for one page of the original is uniformly thinned out so that it fits on one sheet of paper before being sent, so the handling of the received image data is difficult on the receiving side. Convenient and has a lot of blank space.
It is possible to prevent the occurrence of cut sheets on which only a small amount of data is recorded.

Further, the thinned image data does not cause any erroneous recognition, and there is no problem.

In the second facsimile device according to the present invention, when the image data for one page of the original to be transmitted is slightly larger than the amount of data that can be recorded on one sheet of cut paper used as recording paper on the receiving side, The white lines in the white line area are appropriately thinned out before being sent so that the image data for one page of the original can fit on one cut sheet, so the received image data is handling ability (convenient, and can prevent the occurrence of cut sheets with large margins and only a small amount of data recorded on them).

Also, the thinned out white line does not contain any images, so
There is no problem.

In the third facsimile device according to the present invention, when the image data for one page of the original to be transmitted is slightly larger than the amount of data that can be recorded on one sheet of cut paper used as recording paper on the receiving side, In order to fit the image data of one page of the original onto one sheet of cut paper, the white lines in the white line area are thinned out appropriately, or the white lines are thinned out preferentially and the entire line is evenly distributed. Since the image data is thinned out before being sent, it is convenient for the receiving side to handle the received image data.
It is possible to prevent the occurrence of cut sheets on which only a small amount of data is recorded.

[Brief explanation of drawings]

FIG. 1 is a process diagram showing the configuration of an image data thinning processing section in a first embodiment of the present invention. FIG. 2 is a block diagram showing the overall configuration of a facsimile machine in a first embodiment of the present invention. FIG. 3 is a flowchart showing the image data transmission processing procedure in the first embodiment of the present invention. FIG. 4 is a block diagram showing the configuration of an image data thinning processing section in a second embodiment of the invention. FIG. 5 is a flowchart showing the image data transmission processing procedure in the second embodiment of the invention. FIG. 6 is a flowchart showing details of the white line thinning process in the second embodiment of the invention. FIG. 7 is a diagram showing an example of how a group of white lines appears. FIG. 8 is a flowchart showing details of the white line thinning process in the third embodiment of the present invention. In the figure, 1...control unit, 2...buffer memory, 5...comparison/calculation unit, 11...image data thinning processing unit, 12...page line counter, 13...
White line detection circuit, 14...White line counter, 16
. . . transmission/reception control unit; 17 . . . encoding/decoding unit; Figure 7

Claims (1)

[Scope of Claims] 1. Recognition means for recognizing the number of lines that can be recorded on one sheet of cut paper when the recording paper of the receiving facsimile device that receives image data is a cut sheet, Original to be transmitted 1 A page line count means for counting the number of main scanning lines of image data for a page, a count value of the page line count means is compared with the number of lines recognized by the recognition means, and the count value of the page line count means is the line recognized by the recognition means. more than the number, and
A determination means for determining whether the number of differences is less than a predetermined ratio with respect to the number of recognized lines, and a count value of the page line counting means is greater than the number of recognized lines, and the number of differences is When the number of recognized lines is less than a predetermined ratio, the main scanning lines of the image data for one page of the original to be transmitted are sent at equal intervals.
A facsimile device comprising: a line deletion unit that thins out the line by the calculated difference number; and a unit that transmits the image data thinned out by the line deletion unit to a receiving side as data for one page of a document. 2. Recognition means for recognizing the number of lines that can be recorded on one sheet of cut paper when the recording paper of the receiving facsimile device that receives image data is cut paper; A page line counting means for counting the number of main scanning lines; a white line detection counting means for detecting and counting a white line in which all pixels are white among the main scanning lines of image data for one page of a document to be transmitted; The count value of the line count means is compared with the number of lines recognized by the recognition means, and when the count value of the page line count means is greater than the number of recognized lines,
Calculation means for calculating the number of differences; Discrimination means for determining whether the calculated number of differences is less than or equal to a predetermined ratio with respect to the count value of the white line detection counting means; A line deletion means that thins out the detected white line by the calculated difference number when the count value of the means is less than a predetermined percentage, and a line deletion means that thins out the image data after being thinned out by the line deletion means for one page of the original. A facsimile device comprising: means for transmitting data as data to a receiving side. 3. Recognition means for recognizing the number of lines that can be recorded on one sheet of cut paper when the recording paper of the receiving facsimile device that receives image data is cut paper; A page line counting means for counting the number of main scanning lines; a white line detection counting means for detecting and counting a white line in which all pixels are white among the main scanning lines of image data for one page of a document to be transmitted; The count value of the line count means is compared with the number of lines recognized by the recognition means, and the count value of the page line count means is greater than the number of recognized lines, and
A determination means for determining whether the number of differences is less than or equal to a predetermined percentage of the number of recognized lines, and the count value of the page line counting means is greater than the number of recognized lines, and the number of differences is a white line deletion means for thinning out the white lines detected by the white line detection counting means according to a predetermined condition when the number of white lines detected by the white line detection counting means is less than a predetermined percentage; the number of white lines to be thinned out by the white line deletion means is calculated; A second line deletion means thins out the remaining number of lines from the main scanning lines of the image data when the number of differences is less than the number of differences, and the image data after being thinned out by the line deletion means is treated as data for one page of the original. A facsimile device comprising: means for transmitting data to a receiving end. 4. The facsimile apparatus according to claim 3, wherein the second line deletion means thins out the number of remaining lines from the main scanning lines of the image data at equal intervals.